I was in the elevator heading up to my room at Hotel EMC2, a boutique hotel in downtown Chicago, when one of the hotel’s most popular staff members — Leo, a robotic butler — methodically cruised on in ...
Meet Sparrow, Cardinal and Proteus. They’re the robots that, step by step, are replacing human workers in the company’s warehouses. By Karen Weise Karen Weise reported from Shreveport, La., and has ...
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